package com.yuwubao.uav.tool.util;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
 * <Description> <br>
 *
 * @author dubensong <br>
 * @version 1.0<br>
 * @taskId <br>
 * @CreateDate 2017/6/29 <br>
 * @see com.yuwubao.framework.util <br>
 * @since V1.0<br>
 */
public class DateUtil {

    private final static SimpleDateFormat sdfYear = new SimpleDateFormat("yyyy");

    private final static SimpleDateFormat sdfDay = new SimpleDateFormat("yyyy-MM-dd");

    private final static SimpleDateFormat sdfDays = new SimpleDateFormat("yyyyMMdd");

    private final static SimpleDateFormat sdfTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    private final static SimpleDateFormat uavSdfTime = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");

    private final static SimpleDateFormat msTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");

    /**
     * 获取YYYY格式
     *
     * @return
     */
    public static String getYear() {
        return sdfYear.format(new Date());
    }

    /**
     * 获取YYYY-MM-DD格式
     *
     * @return
     */
    public static String getDay() {
        return sdfDay.format(new Date());
    }

    /**
     * 获取YYYYMMDD格式
     *
     * @return
     */
    public static String getDays(){
        return sdfDays.format(new Date());
    }

    /**
     * 转换为YYYYMMDD格式
     *
     * @return
     */
    public static String formatDay(Date date){
        return sdfDays.format(date);
    }

    /**
     * 获取YYYY-MM-DD HH:mm:ss格式
     *
     * @return
     */
    public static String getTime() {
        return sdfTime.format(new Date());
    }

    /**
     * 获取YYYY-MM-DD HH:mm:ss.SSS格式
     *
     * @return
     */
    public static String getMsTime() {
        return msTime.format(new Date());
    }

    public static String getTime(Date date) {
        return sdfTime.format(date);
    }

    /**
     * @Title: compareDate
     * @Description: (日期比较，如果s>=e 返回true 否则返回false)
     * @param s
     * @param e
     * @return boolean
     * @throws
     * @author luguosui
     */
    public static boolean compareDate(String s, String e) {
        if(fomatDate(s)==null||fomatDate(e)==null){
            return false;
        }
        return fomatDate(s).getTime() >=fomatDate(e).getTime();
    }

    /**
     * 格式化日期
     *
     * @return
     */
    public static Date fomatDate(String date) {
        DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
        try {
            return fmt.parse(date);
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 格式化日期
     *
     * @return
     */
    public static Date fomatDateTime(String date) {
        try {
            return uavSdfTime.parse(date);
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 校验日期是否合法
     *
     * @return
     */
    public static boolean isValidDate(String s) {
        DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
        try {
            fmt.parse(s);
            return true;
        } catch (Exception e) {
            // 如果throw java.text.ParseException或者NullPointerException，就说明格式不对
            return false;
        }
    }
    public static int getDiffYear(String startTime,String endTime) {
        DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
        try {
            long aa=0;
            int years=(int) (((fmt.parse(endTime).getTime()-fmt.parse(startTime).getTime())/ (1000 * 60 * 60 * 24))/365);
            return years;
        } catch (Exception e) {
            // 如果throw java.text.ParseException或者NullPointerException，就说明格式不对
            return 0;
        }
    }
    /**
     * <li>功能描述：时间相减得到天数
     * @param beginDateStr
     * @param endDateStr
     * @return
     * long
     * @author Administrator
     */
    public static long getDaySub(String beginDateStr,String endDateStr){
        long day=0;
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        Date beginDate = null;
        Date endDate = null;

        try {
            beginDate = format.parse(beginDateStr);
            endDate= format.parse(endDateStr);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        day=(endDate.getTime()-beginDate.getTime())/(24*60*60*1000);
        //System.out.println("相隔的天数="+day);

        return day;
    }

    /**
     * 得到n天之后的日期
     * @param days
     * @return
     */
    public static String getAfterDayDate(String days) {
        int daysInt = Integer.parseInt(days);

        Calendar canlendar = Calendar.getInstance(); // java.util包
        canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动
        Date date = canlendar.getTime();

        SimpleDateFormat sdfd = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateStr = sdfd.format(date);

        return dateStr;
    }

    /**
     * 得到n天之后是周几
     * @param days
     * @return
     */
    public static String getAfterDayWeek(String days) {
        int daysInt = Integer.parseInt(days);

        Calendar canlendar = Calendar.getInstance(); // java.util包
        canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动
        Date date = canlendar.getTime();

        SimpleDateFormat sdf = new SimpleDateFormat("E");
        String dateStr = sdf.format(date);

        return dateStr;
    }

    /**
     * 获取时间戳
     * @return
     */
    public static String getTimeStamp(){
        return sdfTime.format(System.currentTimeMillis());
    }

    /**
     * 根据时间戳转换为标准格式时间
     * @return
     */
    public static String formatDTFromLong(Long timeStamp){
        if(timeStamp == null){
            return null;
        }
        return sdfTime.format(timeStamp);
    }

    /**
     *
     * 转换UAV返回的时间格式
     * @param uavDateTime
     * @return
     */
    public static String convertUavDateTime(String uavDateTime)
    {
        String timeZoneShort = "";
        if(uavDateTime.indexOf("+") > 0)
        {
            timeZoneShort = uavDateTime.substring(uavDateTime.lastIndexOf("-"),uavDateTime.length()-3);
        }
        else
        {
            timeZoneShort = uavDateTime.substring(uavDateTime.lastIndexOf("-"),uavDateTime.length()-3);
        }
        int jet = Integer.parseInt(timeZoneShort);

        Calendar currentDateTime = Calendar.getInstance();
        currentDateTime.setTime(fomatDateTime(uavDateTime));
        currentDateTime.add(Calendar.HOUR, 8-jet);
        return sdfTime.format(currentDateTime.getTime());
    }


    /**
     * 长整型转换成Date格式
     * @param time
     * @return
     */
    public static Date long2Date( long time )
    {
        Calendar c = Calendar.getInstance();
        c.setTimeInMillis( time );
        return c.getTime();
    }

}
